196 citations · 3.9k across the 120 of their papers we have counts for
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Formation, evolution and multiplicity of brown dwarfs and giant exoplanets
Jose A. Caballero
This proceeding summarises the talk of the awardee of the Spanish Astronomical Society award to the the best Spanish thesis in Astronomy and Astrophysics in the two-year period 200…
Stars and brown dwarfs, spatial distribution, multiplicity, X-rays, discs, and the complete mass function of the sigma Orionis cluster
Jose A. Caballero
The young sigma Orionis cluster in the Orion Belt is an incomparable site for studying the formation and evolution of high-mass, solar-like, and low-mass stars, brown dwarfs, and s…
Low-resolution spectroscopy and spectral energy distributions of selected sources towards sigma Orionis
J. A. Caballero, L. Valdivielso, E. L. Martin +3
Aims: We investigated in detail nine sources in the direction of the young sigma Orionis cluster, which is considered a unique site for studying stellar and substellar formation. T…
New deep XMM-Newton observations to the west of the sigma Orionis cluster
J. Lopez-Santiago, J. A. Caballero
Aims: The objective of this study is to determine the general X-ray properties of the young stars in the external regions of the sigma Orionis cluster (tau ~ 3 Ma, d ~ 385 pc) and…
Young stars and brown dwarfs surrounding Alnilam (eps Ori) and Mintaka (del Ori)
J. A. Caballero, E. Solano
Aims: We look for new regions for the search of substellar objects. Methods: Two circular areas, 45 arcmin-radius each, centred on the young massive star systems Alnilam and Mintak…